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Introduction
Chapter
3
Maintenance
This section contains recommended service procedures and a list of equipment and special
tools needed for the procedures. It also contains disassembly and re-assembly instructions.
WARNING
TO AVOID PERSONNEL INJURY AND/OR DAMAGE TO
EQUIPMENT, OBSERVE ALL. WARNINGS AND CAUTIONS
STATED IN THIS PUBLICATION AND AS DETAILED BELOW.
USE EXTREME CAUTION WHEN WORKING ON THE DISC
DRIVE WITH POWER APPLIED. HAZARDOUS VOLTAGES
ARE PRESENT INSIDE THE DISC DRIVE WHENEVER IT IS
CONNECTED TO AN ACTIVE AC POWER SOURCE.
DO NOT ATTEMPT TO REMOVE OR CHANGE PRINTED CIR-
CUIT ASSEMBLIES OR INTERCONNECTING CABLES WITH-
OUT FIRST REMOVING POWER FROM THE DISC DRIVE.
CAUTION
NEVER ALLOW THE HEADS TO TOUCH EACH OTHER.
WHENEVER THE HEADS ARE DETACHED FROM THE HEAD
LOAD PLATE, PLACE A PIECE OF CLEAN LENS TISSUE BE-
TWEEN THEM TO PREVENT THEM FROM TOUCHING.
THE READ
I
WRITE HEADS ARE FACTORY ALIGNED WITH A
FOUR-TRACK OFFSET BETWEEN THE HEADS. LOOSENING
THE HEAD-MOUNTING SCREW WILL DESTROY THIS
OFFSET AND NECESSITATE THE RETURN OF THE DISC
DRIVE FOR RE-ALIGNMENT.
DO NOT LUBRICATE THE DISC DRIVE - OIL WILL CAUSE
DUST AND DIRT TO ACCUMULATE.
DO NOT TOUCH THE HEADS OR ATTEMPT TO CLEAN
THEM.
3-1
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